暴露的表面和充电的残留物在真菌中驱动热稳定性
Shricharan Senthilkumar1, Sankar Mahesh2, Subachandran Jaisankar1
1Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India.
Proteins
|November 1, 2023
概括
菌的热稳定性与特定的蛋白质特征有关,例如充电和暴露的残留物. 这项研究确定了促进热友真菌耐热性的关键分子因素,为未来研究铺平了道路.
科学领域:
- 菌群学 菌群学 菌群学是指菌群学
- 蛋白质生物化学 蛋白质生物化学
- 基因组学就是基因组学.
背景情况:
- 菌类表现出一系列的温度耐受性,包括热友和热稳定物种.
- 在真菌中,蛋白质的热稳定性受到分子因素的影响,但这些因素因物种而异.
- 了解这些因素对于阐明真菌蛋白如何实现耐热性至关重要.
研究的目的:
- 鉴定热友真菌中促进蛋白质热稳定性的分子因素.
- 为了比较热友和中友真菌之间的蛋白质和结构特征.
- 调查特定的碳水化合物活性酶 (CAZyme) 家族,以深入了解热稳定性.
主要方法:
- 来自14种热性真菌及其介质性亲属的蛋白质的精心策划的数据集.
- 使用eggNOG进行蛋白质组学分析,将蛋白质分类为正统组 (COG) 的集群.
- 在选定的CAZyme家族中对溶剂可访问性,残留成分和分子内相互作用进行比较分析.
主要成果:
- 与美索菲尔相比,热友真菌在充电,暴露和极性残留物中表现出丰富.
- 在热友蛋白质中观察到暴露和中间残留的比例更高,而中友蛋白质的残留量更高.
- 在热友蛋白中,特别是在特定的CAZyme家族 (GH7,GH11,GH18,GH45,CBM1) 中,观察到分子内相互作用的增加.
结论:
- 表面暴露和充电的残留物是真菌蛋白质热稳定性的重要贡献者.
- 这项研究为进一步研究真菌热稳定性机制提供了基础.
- 识别这些因素可以指导工业应用耐热酶的开发.
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